Model airplane



Aug. 26, i941.

c. T EUSCHLER MODEL AIRPLANE Filed Nov. 6, 1940 4 Sheets-Shegt 1 rNmwmhml IN V EN TOR.

ATTORNEYS.

- Aug. 26, 1941. Q TE R I 2,253,661

MODEL AIRPLANE Filed Nov 6, 1940 4 Sheets-Sheet 2 1 INVENTOR.

ATTORNEYS.

Aug. 26, 1941. V CTLTEUSCIHLERY MODEL AIRPLANE Filed Nov. 2;, 1940 4 Sheets-Sheet 3 (7. 2 a wckzerl IN V EN TOR.

A TTORNEYS.

" c. TEUSCHLER Aug. 26, 1941.

' MODEL AIRPLANE Filed Nov. 6, 1940 4 Sheets-Sheet 4 INVENTOR.

aTe cd'ckla ATTORNEYS.

Patented Aug. 26, 1941 UNITED STATES PATENT OFFICE 2,253,651 MODEL AIRPLANE Clarence Teuschler, Cincinnati, Ohio Application November 6, 1940;Serial No. 364,602

7 Claims.

The device forming the subject matter of this application is a model or toy airplane.

The invention aims to provide novel means whereby the wings can be adjusted lengthwise of the fuselage, a novel landing gear being afforded.

Another object of the invention is to improve the construction of the fin, the stabilizer and the rear skid. A further object of the invention is to supply a construction wherein one part affords anchorage for the'rubber band which drives the propeller, and, also, constitutes a mounting for-the stabilizer.

It is within the province of the disclosure to improve generally-and to enhance the utility of devices of that type to which the present invention appertains.

-Withthe above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings: Fig. 1 shows, in side elevation, a toy airplane constructed in accordance with the invention;

Fig. 2 is a top plan; Fig. 3 is a vertical longitudinal section;

Fig. 4 is a cross section on the line 4-4 of Fig. 5 is a cross section on the line 5 5 of Fig-2;

Fig. 6 is a longitudinal section on the line 66 Fig. '7 is a. top plan wherein parts are broken away;

Fig.8 is a section on the line 8-8 of 'Fig. 7; Fig. 9 is a section on the line 9-9 of Fig. 3; Fig. 10 is-a cross section on the line Ill-I0 of Fig. 1.

ing '4. A'propeller 6 is secured to the shaft 5, and 'if the bearing 4 is employed, the hub I of the propeller Bengages terminally with the bearing4, as depicted in Fig. 3.

At its rear end, the propeller shaft 5 is provided with a coupling 8, for example a hook,

adapted for engagement with a source 9 of power, delineated'as a rubber band. The rear end of the band 9 is assembled with a coupling I9, for

instance a hook, engaged about a transverse tubular anchor andbearing II (Fig. 6) mounted in the body I, near the rear end thereof, the bearing function of the part I I being made manifest hereinafter.

The landing gear includes an inverted U- shapedbracket I2, which may be made of Celluloid. As depicted in Fig. 10, the crown of the bracket I2 is located within the body I, and is secured, by cementing or otherwise, to the inner surface of the upper portion of the body I. The

side arms of the bracket I2 pass outwardly through holes in the sides of the body I, the arms of the bracket extending downwardly, as

shownin'Fig. 10, and having a forward divergence, as Fig. '2 will disclose.

As shown in Fig. 9, the upwardly extended portions of angular tubes I4 receive and are secured to the lower ends of the side arms of the bracket I2. The'horizontal portions of the tubes define axles, whereon light ground Wheels I5 are journaled. The retainers I6 for the ground Wheels I5 are headed plugs, the shanks of which are secured in the axle portions of the tubes At its rear end, the body I is provided with a downwardly inclined and rearwardly extended tail skid IT. The tail skid I! may be a strip of flexible material, such as bamboo, having its forward end threaded through holes I8, spaced apart longitudinally, and located in the bottom portion of the body I. The resiliency of the tail skid II will hold it engaged in the holes I8, although a. little cement may be used for that purpose if preferred. v

A stabilizer I9 is located at the rear end of the body I and is provided in its forward edge with .A shaft 5 is journaled for rotation in the bearthe curved form of the shaft 2|, and to its resiliency, the shaft will bear upon the tubular part II, backwardly, near the end portions of the part I I, and will bear forwardly against the part I I, intermediate the ends thereof. The construction is such that the stabilizer I9 may be inclined upwardly or downwardly, to regulate the flight, and, owing to the cooperation between the shaft 2i and the bearing II, shown in Fig. 6, the stabilizer will be held securely but adjustably in any position which it may have been caused to assume.

On the rear end of the body I is superposed an upstanding fin 22, having, on its lower edge, lugs 23 which are cemented or held otherwise in openings in the body I. The fin 22 is sustained by an inclined lateral brace 24 (Fig. 5), the upper end of the brace being secured to the fin, and the lower end of the brace being secured to the body I.

A draw connection 25, which may be a piece of rubber band, extends rearwardly and downwardly from the brace 25, the draw connection being secured at 2f; to the brace. The lower, rear end of the draw connection 25 is secured as shown at 21', in any appropriate way, to the stabilizer I9. If desired, as best displayed in Fig. 6, the anchor 2'! for the draw connection 25 may be located in the rear part of the notch 29 in the stabilizer I9. The draw connection 25 has a tendency to aid in returning the stabilizer I9 to the position depicted in Fig. l, and constitutes a resilient support for the stabilizer.

The inner ends of lateral wings 29 are secured in a saddle structure 28, each wing including a frame 35 and a covering 3L The saddle structure it is upwardly concaved, as shown at 32, to fit upon the body, and is provided on its sides with holes 39, through which extend retainers 34, preferably rubber bands, embracing the body I closely.

The saddle structure 28 and the wings 29, can be adjusted lengthwise of the body I, to regulate the line of flight, and the retainers 34 will hold the wings and associated parts in any position to which they may have been adjusted.

The rubber band 9, having been twisted, imparts propelling effort to the part 6.

The landing gear shown at I2I4I5 is simple but useful on a toy or model airplane.

The means whereby the wings 29 may be adjusted lengthwise of the fuselage F is simple and novel.

The stabilizer ii), the skid I l, the fin 22 and associated parts, combine simplicity of construction and facility in operation, in a way useful on a model airplane.

Having thus described the invention, what is claimed is:

l. A model airplane including a hollow body having side holes, landing gear comprising an inverted U-shaped bracket embodying a crown and side arms, the crown being located within the upper portion of the body, the crown conforming in shape to the inner surface of the upper portion of the body and being secured thereto, the arms extending outwardly through the holes, and ground-engaging means carried by the arms.

2. A model airplane including a hollow body having side holes, landing gear comprising an inverted U-shaped bracket embodying a crown and side arms, the crown being located within the upper portion of the body, the crown conforming in shape to the inner surface of the upper portion of the body and being secured thereto, the arms extending outwardly through the holes, angular tubes comprising axle members and upwardly extended parts, the upwardly extended parts receiving the lower ends of the arms, ground wheels journaled on the axle members, and plugs inserted into the axle members and having heads retaining the ground wheels for rotation on the axle members.

3. A model airplane comprising a body, a saddle structure superposed on the body, a resilient member assembled with the saddle structure and extended transversely across the lower portion of the body, the resilient member constituting means for securing the saddle structure to the body, for adjustment with respect to the body, and wings carried by the saddle structure.

4. A model airplane comprising a body, a saddle structure superposed on the body and shaped to conform to the cross section of the body, the side portions of the saddle structure having openings, an endless, resilient band embracing the body and threaded through the openings, the band constituting means for holding the saddle structure in adjusted positions with respect to the body, and wings carried by the saddle structure.

5. A model airplane comprising a body, a tubular bearing mounted transversely in the body, a stabilizer at the rear end of the body, and a shaft carried by the stabilizer and passing through the bearing, the shaft being resilient and curved, to attain a frictional hold on the bearing, thereby to maintain the stabilizer in adjusted positions.

6. A model airplane comprising a fuselage, a tubular bearing mounted transversely in the fuselage, a stabilizer at the rear end of the fuselage, a shaft carried by the stabilizer and passing through the bearing, to mount the stabilizer for adjustment, a propeller shaft mounted to rotate in the forward portion 'of the body, and a torque motor having its forward end connected to the propeller shaft, the rear end of the torque motor being anchored on the bearing.

7. A model airplane comprising a body, a tubular bearing mounted transversely in the body, a stabilizer at the rear end of the body, a shaft carried by the stabilizer and passing through the bearing, the shaft being resilient and curved, to attain a frictional hold on the bearing, thereby to maintain the stabilizer in adjusted positions, an upright tail mounted on the body, a brace connected to the tail and to the body, and a draw connection between the brace and the stabilizer and constituting a resilient support for the stabilizer, the connection tending to aid in returning the stabilizer to a position parallel to the longitudinal axis of the body.-

CLARENCE 'IEUSCHLER. 

